Definition: The immune system’s overreaction to harmless substances like pollen, food, or insect stings. Importance: Reactions range from mild to life-threatening (anaphylaxis) and require quick recognition and treatment. What You Can Do Naturally: Identify and avoid triggers, maintain a clean home, and use air purifiers. Geneva-Med Service Connection: We provide Primary & Acute Care for allergy management and treatment in Alpharetta / Johns Creek.